UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g8iGJtyfM5ZngA239MIUvL3qqC3O07SBKsk6O08PU68=' 
WHERE 
  key_id = '50e73ec76d22e95a78f8cfe53ab29fb0ef0d10d2292e0b9a23f512caabd403b8' 
  AND (
    token = 'g8iGJtyfM5ZngA239MIUvL3qqC3O07SBKsk6O08PU68=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )